Transcript What 2 substances are made in the break down of the

ENZYMES Quick Quiz 1
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ENZYMES 1
What 2 substances
are made in the break
down of the hydrogen
peroxide by
manganese dioxide?
Water and carbon
dioxide
2. Water and carbon
dioxide
3. Oxygen and food
4. Oxygen and water
1.
33%
33%
17%
17%
ENZYMES 1
Which substance
could we easily see
being produced in
this reaction?
33% 33%
ENZYMES 1
t
de
te
r
ge
n
ge
n
O
xy
id
e
di
ox
n
rb
o
4.
ca
3.
at
e
2.
Water
carbon dioxide
Oxygen
detergent
W
1.
r
17% 17%
What effect does the
catalyst have on the
break down of
hydrogen peroxide?
1.
2.
3.
4.
17%
17%
0%
Slows it down
Speeds it up
No effect
Turns hydrogen
peroxide black
67%
ENZYMES 1
Slows it down
Speeds it up
No effect
Turns hydrogen peroxide black
How could we prove that
the gas given off was in
fact oxygen gas?
The gas would blow
out a wooden splint
2. The gas would relight
a glowing splint
3. The gas would blow
out a glowing splint
4. The gas would relight
a wooden splint
1.
ENZYMES 1
Our livers contain an enzyme called
catalase, which breaks down toxic
(harmful) hydrogen peroxide into
water and oxygen.
1.
TRUE
2.
FALSE
67%
33%
ENZYMES 1
Both the enzyme catalase and the
chemical manganese dioxide break
down hydrogen peroxide.
1.
TRUE
2.
FALSE
50%
50%
ENZYMES 1
Only catalase enzyme breaks down
hydrogen peroxide.
1.
TRUE
2.
FALSE
17%
83%
ENZYMES 1
The enzyme catalase speeds up the
break down of hydrogen peroxide
which is a harmful substance.
1.
TRUE
2.
FALSE
60%
40%
ENZYMES 1
There is no difference between a
biological washing powder and a nonbiological washing powder in terms of the
energy they use.
1. TRUE
2.
FALSE
67%
33%
ENZYMES 1
Enzymes are biological catalysts which
speed up the rate of chemical
reactions.
TRUE
2. FALSE
1.
ENZYMES 1
Enzymes can be extracted from plants
and animals and used to clot milk to
make cheese.
TRUE
2. FALSE
1.
ENZYMES 1
Non-biological washing powders have
enzymes added to them.
TRUE
2. FALSE
1.
ENZYMES 1
Human
enzymes work
best below a
temperature of
30°C.
TRUE
2. FALSE
1.
ENZYMES 1
Enzymes are biological catalysts which
slow down the rate of chemical
reactions.
TRUE
2. FALSE
1.
ENZYMES 1
Manganese dioxide is
an enzyme, as it
speeds up the
chemical reaction.
TRUE
2. FALSE
1.
ENZYMES 1